Plato, Laws 821d

πολίτας τε καὶ τοὺς νέους τὸ μέχρι τοσούτου μαθεῖν περὶ ἁπάντων τούτων, μέχρι τοῦ μὴ βλασφημεῖν περὶ αὐτά, εὐφημεῖν δὲ ἀεὶ θύοντάς τε καὶ ἐν εὐχαῖς εὐχομένους εὐσεβῶς. τοῦτο μὲν ὀρθόν, εἴ γε πρῶτον μὲν δυνατόν ἐστιν ὃ λέγεις μαθεῖν· εἶτα, εἰ μὴ λέγομέν τι περὶ αὐτῶν ὀρθῶς νῦν, μαθόντες δὲ λέξομεν, συγχωρῶ κἀγὼ τό γε τοσοῦτον καὶ τοιοῦτον ὂν μαθητέον εἶναι. ταῦτʼ οὖν ὡς ἔχοντά ἐσθʼ οὕτω, πειρῶ σὺ μὲν ἐξηγεῖσθαι πάντως, ἡμεῖς δὲ συνέπεσθαί σοι μανθάνοντες.

as to enable them not to blaspheme about them, but always to speak piously both at sacrifices and when they pray reverently at prayers. You are right, provided that, in the first place, it is possible to learn the subject you mention; and provided also that learning will make us correct any mistakes we may be making about them now,—then I, too, agree that a subject of such importance should be learned. This being so, do you make every effort to expound the matter, and we will endeavor to follow you and learn.